Scope genlocke retireHoF to HoF team instead of all alive Pokemon

advance_leg() now checks current_run.hof_encounter_ids first and only
retires those Pokemon and their families. Falls back to all alive
non-shiny Pokemon when no HoF team is selected (backwards compatible).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

backend/src/app/api/genlockes.py

@@ -146,16 +146,23 @@ async def advance_leg(
 
     # Compute retired Pokemon families if retireHoF is enabled
     if genlocke.genlocke_rules.get("retireHoF", False):
-        # Query surviving caught Pokemon from the completed run
-        # "Surviving HoF" = caught, not fainted, not shiny
-        survivors_result = await session.execute(
-            select(Encounter.pokemon_id).where(
-                Encounter.run_id == current_leg.run_id,
-                Encounter.status == "caught",
-                Encounter.faint_level.is_(None),
-                Encounter.is_shiny.is_(False),
+        # Prefer the player's HoF team selection; fall back to all alive
+        if current_run.hof_encounter_ids:
+            survivors_result = await session.execute(
+                select(Encounter.pokemon_id).where(
+                    Encounter.id.in_(current_run.hof_encounter_ids),
+                )
+            )
+        else:
+            # Fallback: all surviving caught, non-shiny Pokemon
+            survivors_result = await session.execute(
+                select(Encounter.pokemon_id).where(
+                    Encounter.run_id == current_leg.run_id,
+                    Encounter.status == "caught",
+                    Encounter.faint_level.is_(None),
+                    Encounter.is_shiny.is_(False),
+                )
             )
-        )
         survivor_ids = [row[0] for row in survivors_result]
 
         if survivor_ids: